EP 1566768 B1 20160518 - Segmentation method and apparatus for scanned documents
Title (en)
Segmentation method and apparatus for scanned documents
Title (de)
Verfahren und Vorrichtung zur Segmentierung für gescannte Dokumente
Title (fr)
Procédé et appareil de segmentation pour documents scannés
Publication
Application
Priority
US 77651604 A 20040212
Abstract (en)
[origin: US2004227758A1] Methods and systems include a dependent min-max module the receives image data and generates a dependent Min value and a dependent Max value within a window around a pixel of interest. A dynamic threshold module, based on the dependent Min and Max values, generates continuity data and enhanced data suitable for identifying, for example, blobs.
IPC 8 full level
G06K 9/00 (2006.01); G06K 9/20 (2006.01); G06K 9/38 (2006.01); G06T 5/00 (2006.01); G06T 7/00 (2006.01); G06T 7/60 (2006.01); G06V 30/162 (2022.01); H04N 1/40 (2006.01); G06V 30/10 (2022.01)
CPC (source: EP US)
G06T 7/11 (2016.12 - EP US); G06T 7/12 (2016.12 - EP US); G06T 7/194 (2016.12 - EP US); G06V 30/162 (2022.01 - EP US); G06V 30/413 (2022.01 - EP US); H04N 1/40062 (2013.01 - EP US); G06T 2207/10008 (2013.01 - EP US); G06T 2207/20012 (2013.01 - EP US); G06T 2207/20192 (2013.01 - EP US); G06T 2207/30176 (2013.01 - EP US); G06V 30/10 (2022.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
US 2004227758 A1 20041118; US 7324120 B2 20080129; EP 1566768 A2 20050824; EP 1566768 A3 20080924; EP 1566768 B1 20160518; JP 2005228342 A 20050825; JP 4680622 B2 20110511; TW 200541311 A 20051216; TW I380675 B 20121221
DOCDB simple family (application)
US 77651604 A 20040212; EP 05100937 A 20050210; JP 2005036118 A 20050214; TW 94103881 A 20050205